int main(void)
{
nrf_pwm_config_t pwm_config = PWM_DEFAULT_CONFIG;
pwm_config.mode = PWM_MODE_LED_255;
pwm_config.num_channels = 2;
pwm_config.gpio_num[0] = 8;
pwm_config.gpio_num[1] = 9;
// Initialize the PWM library
nrf_pwm_init(&pwm_config);
// Configure the ADC
// P0.1 is used for ADC input, apply a varying voltage between 0 and VDD to change the PWM values
NRF_ADC->CONFIG = ADC_CONFIG_RES_8bit << ADC_CONFIG_RES_Pos | ADC_CONFIG_INPSEL_AnalogInputOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos |
ADC_CONFIG_REFSEL_SupplyOneThirdPrescaling << ADC_CONFIG_REFSEL_Pos | ADC_CONFIG_PSEL_AnalogInput2 << ADC_CONFIG_PSEL_Pos;
NRF_ADC->ENABLE = 1;
NRF_ADC->INTENSET = ADC_INTENSET_END_Msk;
// Enable the ADC interrupt, and set the priority to 1
NVIC_SetPriority(ADC_IRQn, 1);
NVIC_EnableIRQ(ADC_IRQn);
// Start the ADC
NRF_ADC->TASKS_START = 1;
while (true)
{
}
}
int main(void)
{
uint32_t counter = 0;
nrf_pwm_config_t pwm_config = PWM_DEFAULT_CONFIG;
pwm_config.mode = PWM_MODE_LED_255;
pwm_config.num_channels = 4;
pwm_config.gpio_num[0] = LED_1;
pwm_config.gpio_num[1] = LED_2;
pwm_config.gpio_num[2] = LED_4;
pwm_config.gpio_num[3] = LED_3;
// Initialize the PWM library
nrf_pwm_init(&pwm_config);
while (true)
{
// Update the 3 outputs with out of phase sine waves
nrf_pwm_set_value(0, sin_table[counter]);
nrf_pwm_set_value(1, sin_table[(counter + 25) % 100]);
nrf_pwm_set_value(2, sin_table[(counter + 50) % 100]);
nrf_pwm_set_value(3, sin_table[(counter + 75) % 100]);
counter = (counter + 1) % 100;
// Add a delay to control the speed of the sine wave
nrf_delay_us(8000);
}
}
void InitFan(void) //Initaling the fan
{
GpioConfig(FAN_POWER_CONTROL_PIN,OUTPUT);
GpioConfig(FAN_PWM_PIN,OUTPUT);
//Seting the PWM Output for controling the motor
nrf_pwm_config_t pwm_config = PWM_DEFAULT_CONFIG;
pwm_config.mode = PWM_MODE_MTR_100; // 0-100 resolution, 20 kHz PWM frequency, 4MHz timer frequency (prescaler 2)
pwm_config.num_channels = 1; //Just one Channel
pwm_config.gpio_num[0] = FAN_PWM_PIN;
nrf_pwm_init(&pwm_config); // Initialize the PWM library
OpenFan(60); //60-duty-cycle as default
}
